7. Trouble Seeing.
There are a variety of things that can go wrong when you have food poisoning and if you notice that your vision is reduced to less than normal then this could be a sign that you have food poisoning. If your vision is reduced and you are certain that it may be food poisoning, it is important that you visit your doctor, as this could be a sign of your illness becoming more severe. Even if your vision loss is not too bad, it is wise to have your doctor take a look at your health status and possibly provide treatment to help you eliminate the illness from your system.
8. Unable to Swallow.
If you are unexpectedly unable to swallow, you should treat this as a medical emergency and seek help as soon as possible, regardless of how long you have had this. Most often, difficulty swallowing indicates an allergic reaction and if you notice that any difficulty with this, you need to seek help. This is not the most common sign with food poisoning, but there is a chance that the illness could increase dramatically to the point to where you cannot swallow anything. Make sure to carefully monitor your signs and symptoms so that the illness does not become more severe than what it should be.